Umphathi welizwi weendawo ezinkulu: Ungenza njaniisithethi soluhlu lomgca wobuchwepheshaukwenza umqolo wokugqibela uvakale ngokucacileyo?

I-Acousticuvavanyo lubonisa ukubainkqubo yoluhlu lwemigca yobungcaliinokuphucula ukucaca kwentetho kwiindawo ezinkulu ngama-50%, kwaye inciphise umahluko kwinqanaba loxinzelelo lwesandi kumqolo ongasemva ukuya kwi-3 decibels

Kwiinkundla zemidlalo, kwiindawo zendibano, okanye kwiindawo ezingaphandle ezinokwamkela amawaka abantu, izithetheiinkqubo zesandibadla ngokujongana nengxaki engaqhelekanga: abaphulaphuli abakumqolo ongaphambili bayava iindlebe, ngelixa abaphulaphuli abakumqolo ongasemva beva iingcongconi neempukane. Kule mihla, iinkqubo zesandi zobuchwephesha ezisekwe kwiindlela ezichanekileyo zokubala i-acoustic ziyayitshintsha ngokupheleleyo le meko. Ngokusebenzisa ulawulo olukrelekrele lweiiprosesakunye nokuqhuba ngokuchanekileyoii-amplifier zobungcali, abaphulaphuli kuzo zonke iikona zendawo banokufumana amava acacileyo nahambelanayo okuva.

Uyilo lweinkqubo yesandi yobungcaliiqala ngohlalutyo lwesayensi lweempawu zesandi zendawo. Iingcali zisebenzisa ukulinganisaiimayikrofoniukwenza ukuskena okubanzi kwe-acoustic kwendawo, kunyeiprosesaiseka imodeli ye-acoustic enamacala amathathu ngokusekelwe kwidatha eqokelelweyo. Le modeli ibala ngokuchanekileyo indlela yokusasazeka, iimpawu zokubonakalisa, kunye nomthetho wokunciphisa amaza esandi kwindawo, inika isiseko sesayensi soyilo kunye nokulungiswa kwe-engile yesithethi se-line array. Umsebenzi wokubambisana weii-amplifier zedijithalikwayeii-amplifier zobungcaliiqinisekisa ukuba isandi sigcina amandla aneleyo kunye nokucaca ngexesha lokudluliselwa komgama omde.

Inzuzo ephambili yesipikha semigca ikwindlela yaso ekhethekileyo yokulawula isandi ngokuthe nkqo. Ngokucwangciswa ngokuchanekileyo kweeyunithi zesipikha ezininzi, inkqubo iyakwazi ukuveza amandla amaza esandi ngendlela efana nomqadi wokukhangela. Ngokungafaniyo nokusasazwa okungqukuva komthombo wenqaku wendabuko.izithethi, amaza ajikelezayo aveliswa sisipikha somgca anokunciphisa ngempumelelo inkunkuma yamandla esibhakabhakeni nakwiindawo ezingasebenzi kakuhle, aze agxininise amandla esandi angakumbi kwindawo yabaphulaphuli. Oku kuchanekileyo.intsimi yesandiulawulo luvumela abaphulaphuli ukuba bafikelele kumanqanaba oxinzelelo lwesandi kunye nokucaca kwentetho okufana nalawo akumqolo ongaphambili, nokuba kwizihlalo ezingasemva ezikude ngamakhulu eemitha.

Iprosesa idlala indima "yenjineli ye-acoustic ekrelekrele" kwinkqubo yesandi yendawo. Ayidingi nje kuphela ukulawula umsebenzi wentsebenziswano wamaqela esandi semigca emininzi, kodwa ikwaphucula ngokuguquguqukayo ngokwendlela esetyenziswa ngayo indawo. Xa kufunyenwe uxinano olukhulu lwabaphulaphuli kwindawo ethile, iprosesa iya kulungisa ngokuzenzekelayo amandla okukhupha eyunithi yemigca ehambelanayo; Xa idibana nomoya ovuthuzayo okanye utshintsho lomswakama oluchaphazela ukusasazeka kwesandi, inkqubo iya kuhlawula impendulo yefrikhwensi ngexesha langempela.i-power sequenceriqinisekisa ulungelelwaniso oluqinileyo lokuqalisa nokusebenza kwazo zonke iiyunithi zesandi, ithintela ukuphazamiseka kwesigaba okubangelwa kukwahluka kwexesha okuncinci, okubalulekileyo ekugcineni ukucaca kokudluliselwa kwesandi kumgama omde.

Uqwalaselo lwei-subwooferifuna ukuqwalaselwa ngokukodwa kwiimfuno ezikhethekileyo zeendawo ezinkulu. I-subwoofer yendabuko enye idla ngokuba nzima kwiindawo ezinkulu, kwaye izisombululo zanamhlanje zamkela ulwakhiwo lwe-subwoofer array esasazekileyo. Ngokusebenzisa ulawulo olukrelekrele lweprosesa, iyunithi nganye ye-subwoofer inokusebenzisana ukwenza ukugubungela okufanayo kwe-low-frequency ngaphakathi kwendawo. Ii-amplifier zobungcali zibonelela ngenkxaso enamandla ezinzileyo neninzi yale subwoofer, ukuqinisekisa ukuba iziphumo ze-low-frequency ziyamangalisa kwaye zinamandla, ngaphandle kokufihla ukucaca kwentetho ephakathi ukuya kwephezulu.

Uzinzo kunye noluhlu lokugubungelaimakrofoni engenazingcingozibalulekile kwimisitho emikhulu.Iimakrofoni ezingenazingcingo eziphathwayoUkusebenzisa iteknoloji yokwamkela umahluko webhendi ye-UHF kunokugcina unxibelelwano oluzinzileyo kwiindawo ezintsonkothileyo ze-electromagnetic. Umsebenzi wolawulo lweefrikhwensi ezizenzekelayo zeziteshi ezininzi ezixhotyiswe kwinkqubo unokukwaziisixhobo sokubonakwaye uphephe amaza okuphazamiseka ngexesha langempela, ukuqinisekisa ukuba ilizwi lesithethi okanye lomdlali linokudluliselwa ngokucacileyo nangokuzinzileyo xa lisuka nakweyiphi na indawo kwindawo. I-algorithm ekrelekrele yeumthinteli wempenduloinokuchonga kwaye icinezele ukukhala okunokwenzeka, ingakumbi ukubonelela ngokhuseleko olongezelelweyo xaisithethiisondela kwisithethi esiphambili se-array yomgca.

Abantu abakrelekreleumxube wesandiinika indawo ekulula kakhulu ukuyifumanaisandiulawulo. Abaqhubi banokulawula ngokuzenzekelayo iiparameter zesandi zendawo nganye baze bajonge imeko yokusebenza yeyunithi nganye yomgca ngexesha langempela ngokusebenzisa ujongano lwesikrini sokuchukumisa. Iindlela zesimo esimiselweyo zivumela iintlobo ezahlukeneyo zemisebenzi ukuba zitshintshe ngokukhawuleza useto lwesandi: imo yenkomfa ilungisa ukucaca kwelizwi, imo yokusebenza iphucula ukubonakaliswa komculo, kwaye imo yezemidlalo igxila ekuqondeni kokuphawula. Umxubi wesandi ophucukileyo ukwaxhasa umsebenzi wokusebenzisana nabaqhubi abaninzi, ukuqinisekisa uqhagamshelo olugqibeleleyo lweekhonkco ezahlukeneyo zesandi kwiziganeko ezinkulu.

Ngamafutshane,isandi sobuchwepheshaIsisombululo seendawo ezinkulu sisixhobo sobunjineli senkqubo esipheleleyo esidibanisa ukukhomba ngokuchanekileyo isandi somgca, ukuqhuba okuzinzileyo kwee-amplifier zobungcali, ukuguqulwa okusebenzayo kwee-amplifier zedijithali, ulawulo olukrelekrele lweeprosesa, ukuvumelanisa ngokuchanekileyo kwee-sequencers, ukugubungela okufanayo kwe-subwoofer, ukuhanjiswa okuthembekileyo kweemakrofoni ezikrelekrele, kunye nolawulo olulula lwee-mixers zeaudio. Le nkqubo ye-Voice Commander ayisombululi nje kuphela ingxaki yokusasazwa kwe-acoustic kwiindawo ezinkulu, kodwa ikwafezekisa ukuhambelana kuyo yonke amava okuva ngokusebenzisa ubuchwepheshe obukrelekrele. Ivumela wonke umntu ophulaphuleyo, nokuba uphi na isikhundla kwindawo, ukuba onwabele isandi esicacileyo nesishukumayo ngokulinganayo, eqonda ngokwenene imeko efanelekileyo yokumamela "yokulingana phambi kwesandi". Kwiziganeko zanamhlanje ezixhaphakileyo, ukutyala imali kwi-inkqubo yesandi yendawo yobungcalisisiqinisekiso esingcono kakhulu somgangatho womsitho kunye namava abaphulaphuli.